07,08,09 GMC 3/4 trailer brake controller??

Discussion in 'Trucks and Trailers' started by meets1, Apr 23, 2009.

  1. meets1

    meets1 LawnSite Gold Member
    Posts: 3,770

    I don't get?? What am I missing? Our 3 older trucks have the controller under the bash area and they work fine. I can't seem to get these new trucks working at all? Am I overlooking something?
     
  2. seabee1

    seabee1 LawnSite Member
    Posts: 239

  3. Petr51488

    Petr51488 LawnSite Silver Member
    from NJ
    Posts: 2,371

    How are they not working? Power wise? Did you hook up the wires under the hood? Theres 2 taped up next to the fuse box somewhere. Ones for constant power in the trailer (interior lights) and youll have to replace the dummy fuse they have in the fuse box, and the other is for an aftermarket trailer brake controller.
     

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